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A Man With Progressive Chorea and Abnormal Trunk Movements.

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|July 11, 2024
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Neuroacanthocytosis syndromes, including chorea-acanthocytosis, present with abnormal red blood cells and basal ganglia degeneration. Distinctive "rubber man" gait and severe orolingual dystonia are key clinical indicators for diagnosis.

Keywords:
chorea-acanthocytosishead dropsneuroacanthocytosisrubbermantrunk extension

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Area of Science:

  • Neurology
  • Genetics
  • Hematology

Background:

  • Neuroacanthocytosis (NA) syndromes are rare genetic disorders.
  • Characterized by acanthocytes (abnormal red blood cells) and basal ganglia degeneration.
  • Leads to diverse neurological and systemic symptoms.

Observation:

  • A 35-year-old male exhibited progressive limb and facial movements, dysphagia, and self-mutilatory oral behaviors.
  • Symptoms included involuntary tongue protrusion, cheek/lip biting, and compensatory swallowing strategies.
  • Neurologic exam revealed generalized chorea, severe orolingual dystonia, and trunk instability during ambulation.

Findings:

  • The patient displayed a "rubber man" gait with neck and trunk flexions.
  • Severe orolingual dystonia, termed "eating dystonia," significantly impacted feeding.
  • Sudden loss of tone during walking caused trunk flexion and extension.

Implications:

  • These specific clinical features, including "rubber man" gait and orolingual dystonia, may serve as definitive indicators for chorea-acanthocytosis.
  • Early identification of these signs can aid in diagnosis, especially when coupled with self-mutilatory mouth movements.
  • Valuable diagnostic insights are provided for this rare neurological disorder.